Two-time Olympic champion Eliud Kipchoge is confident he can deliver again on Sunday at the Berlin marathon and appears out to better the official world record he set there in 2018. Among Kipchoge’s around 45,000 fellow runners in the German capital will be former Brazil football star Kaka who is making his debut over the 42.195km distance. “I expect a very good race on Sunday,” the 37-year-old Kenyan Kipchoge said on Friday. Kipchoge has won the Berlin marathon three times, bettering the world record to 2 hours 1 minute 39 seconds in 2018. The Kenyan great has also run the under the magic 2 h…